
As a rater and insulation contractor I personally respect the overall insulation properties of blown cellulose a lot more than blown fiberglass. I have taken numerous infrared images in attics with the same R-values, both products cellulose and fiberglass. I find time and time again poor performance of blown fiberglass. The R-values are similar, but cellulose is a much denser product. I was wonde…
© 2013 Created by Lawrence Berkeley National Laboratory.